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Q. What is compound?
A compound is a substance which consists of two or more elements chemically combined. The elements in a compound aren't simply mingled together as they are in a mixture. In its place they are combined in a way such that the compound has properties that are different from those of the elements of which it is composed. Every compound is represented by a formula a combination of the symbols of the elements that make up the compounds. You may already recognize some chemical formulas such as H2O for water, NaCl for table salt and NH3 for ammonia.
A transition metal X has a configuration [Ar] 3d 4 in its +3 oxidation state. Its atomic number is: (1) 25 (2) 26 (3) 22 (4) 19 Ans: 25
why HOH is not harmful to our body but Phenol is?
Cathode rays have
n-propyl acetate evaporates rapidly when exposed to air,but water does not.Explain
Q. Determine the best method of preparing a stable emulsion? To determine the best method of preparing a stable emulsion like mayonnaise. • learn the process of preparation
characteristics of irreversible reaction
Time-of-entry experiments indicate that a gene for resistance to kanamycin, kan-r, is closely linked to a gene for resistance to bacteriophage T5, T5-r. A geneticist has strains of
what is equevalent weight of Nacl
4-methyl 2- hexyne
disadvantages of sludge formation
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